ECO-422-4 is a changeover unit for RS-232/422. The changeover unit provides 4 changeover channels, and each channel has main & backup RS-232/422 inputs and 1 output. Each channel can be switched via its independent changeover control button/GPI trigger. All of the channels can be controlled via PC on RS-232 serial port. Main input of each channel supports power-off loop-thru. Dual PSU design ensures the stability and reliability of the operation.

ECO-422-4 is ideal for changeover between Main & Backup Control Systems in Broadcast Master Control or in other occasions where RS-232/422 interface changeover is needed.